[IBM Storwize] Retype failure for replication volume-type

[Harsh Ailani]

While retyping a replication volume, chfcmap() call is being called which is resulting in retype operation failure.
Error: CMMVC7154E The task cannot be completed because the specified FlashCopy mapping is controlled by a Metro Mirror or Global Mirror relationship.

This error is occurring because as per the code chfcmap is called under update_clean_rate() def.

Whereas, chfcmap should not be called for any fc map which is rc_controlled.

Hence while retyping global mirror to global mirror, metro mirror to metro mirror and GMCV to GMCV volume, this error comes up as the fc map of the volume is rc_controlled for these replication volume types.

[Harsh Ailani (haailani)]

Working on the fix for this bug.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/openstack/cinder/+/836944

[Harsh Ailani (haailani)]

Provided the fix.

Review: https://review.opendev.org/c/openstack/cinder/+/836944

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/cinder/+/836944
Committed: https://opendev.org/openstack/cinder/commit/b99e73e96cb6448f81a2f4b2e8e624bf36bbff0e
Submitter: "Zuul (22348)"
Branch: master

commit b99e73e96cb6448f81a2f4b2e8e624bf36bbff0e
Author: haailani <email address hidden>
Date: Thu Apr 7 11:37:14 2022 +0000

    [SVf]:Fix retype failure for replication volume-type

    [Spectrum Virtualize family] While retyping GM to GM or MM to MM or
    GMCV to GMCV, chfcmap() call is being made which is resulting in retype
    operation failure.
    Error: CMMVC7154E The task cannot be completed because the specified
    FlashCopy mapping is controlled by a Metro Mirror or Global Mirror
    relationship.

    chfcmap() should not be called for any FC map which is rc_controlled.
    Hence while retyping global mirror to global mirror or
    metro mirror to metro mirror or GMCV to GMCV volume, this error comes
    up as the FC map of the volume is rc_controlled for these replication
    volume-types.

    Closes-Bug: #1968159
    Change-Id: Ic97a2501b4c895b2b655284bcc320036c2d4e217

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/yoga
Review: https://review.opendev.org/c/openstack/cinder/+/838880

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/cinder/+/838880
Committed: https://opendev.org/openstack/cinder/commit/22e6d53082ad03bdf7c750461c0dc743d10e9704
Submitter: "Zuul (22348)"
Branch: stable/yoga

commit 22e6d53082ad03bdf7c750461c0dc743d10e9704
Author: haailani <email address hidden>
Date: Thu Apr 7 11:37:14 2022 +0000

    [SVf]:Fix retype failure for replication volume-type

    [Spectrum Virtualize family] While retyping GM to GM or MM to MM or
    GMCV to GMCV, chfcmap() call is being made which is resulting in retype
    operation failure.
    Error: CMMVC7154E The task cannot be completed because the specified
    FlashCopy mapping is controlled by a Metro Mirror or Global Mirror
    relationship.

    chfcmap() should not be called for any FC map which is rc_controlled.
    Hence while retyping global mirror to global mirror or
    metro mirror to metro mirror or GMCV to GMCV volume, this error comes
    up as the FC map of the volume is rc_controlled for these replication
    volume-types.

    Closes-Bug: #1968159
    Change-Id: Ic97a2501b4c895b2b655284bcc320036c2d4e217
    (cherry picked from commit b99e73e96cb6448f81a2f4b2e8e624bf36bbff0e)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/cinder 20.0.1 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/cinder 21.0.0.0rc1 release candidate.